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PERMIT #: M -1985 -043 <br />INSPECTOR'S INITIALS: TC1 <br />INSPECTION DATE: March 11, 2014 <br />OBSERVATIONS <br />This inspection was conducted as part of the regular monitoring program. Messrs. Tom Smith and Rob <br />Mangone were present for the inspection, representing the Operator (Rocky Mountain Materials and Asphalt, <br />Inc.). Ms. Stephanie Carter was also present, representing the Bureau of Land Management (BLM). This is a <br />112c limestone mine. The mine was operating at the time of the inspection. <br />The Red Canyon Quarry is accessed from Barrett Road which is off Highway 115, approximately 14 miles north <br />of Penrose. <br />Inspection: <br />A permit sign was posted near the site entrance at the truck scale (see Photo 1). The quarry valley is naturally <br />steep and the undisturbed areas are forested. The current disturbance is limited to the southern portion of <br />Phase 1. The Operator representatives indicated the boundaries between the State and BLM lands are <br />surveyed and staked for the purpose of tracking minerals associated with the separate leases. They did not <br />expect to start mining in Phase II for quite some time. The Operator representatives indicated blasting <br />operations are contracted out to Buckley and occur every 1 to 2 months. <br />Equipment observed onsite included conveyors and crushers (see Photos 2 and 3). Above ground fuel tanks <br />were observed to be contained within a concrete stem wall (see Photo 4). The haul roads are dust controlled <br />using water trucks (see Photo 5). The sediment pond was full at the time of inspection (see Photo 6). <br />The current highwall exposures show complex and varied geologic structure with multiple foliations, joint sets, <br />intrusions, and fracture zones (see Photos 7 and 8). The Division believes that the best approach to evaluate <br />long term stability of the final highwall is to evaluate the geologic conditions and stability as the mining phases <br />progress. Final highwall geometry may need to be adjusted depending on phase specific conditions. As each <br />phase approaches the final configuration for the highwall, the local and global stability should be closely <br />analyzed by a qualified person to ensure that slope failure or raveling erosion will not move beyond the permit <br />boundary. Additionally, care should be given to leave the final highwall in a condition that will minimize local <br />failures and rockfall from the highwall face. <br />Records: <br />• The total permitted area is 675 acres, with a phased maximum affected area of 110 acres. Annual <br />reports for 2013 and 2014_indicate the site has 40 acres of disturbance. Based on Google Earth <br />measurements of a 10/22/2011 satellite image, the Division believes the disturbance to be somewhere <br />between 45 and 50 acres, depending on roads that may or may not be required to be reclaimed. . <br />• Revisions: <br />o The mine ownership has been transferred twice, most recently to Rocky Mountain <br />Materials in August 2014, subsequent to this inspection. <br />o Major revisions — there have been three major revisions: 1) conversion to a 112c permit in <br />1986; 2) Amendment 1 added of 637 acres in 1997, and 3) Amendment 2 changed the size <br />of a phase and the mining direction in 2001. <br />o Minor revisions — there have been two technical revisions: 1) Technical Revision 1 <br />incorporated sediment ponds into the permit area, and 2) TR -02 reverted the mine phase <br />plan to the original 4 -phase plan in the counter - clockwise direction. <br />Page 2 of 8 <br />